The yellow color meant that the radar had locked onto them.
India-band radar is searching but hasn't locked onto us yet.
The Tomcat's radar was a set-to-track-while-scanning system, and could lock onto six separate targets and guide missiles simultaneously to all six locations.
The radar locked and the Sidewinder seeker head slaved to the closest heat source and began buzzing.
Instead, the radar locked on a red Chevrolet Blazer.
Once the launching aircraft's radar has locked onto a target, the missile can be launched.
By that time, the Tomcat's radar had locked on to their targets and their own Phoenix missiles had been released.
Wink hit the switch to make the radar scan above the nose and looked at the two green lights to show the radar had locked on.
I want you to... "Pulsed radar locked onto us!"
The Tomcat's radar, set to track-while-scan, could lock onto six separate targets while simultaneously guiding six missiles at once.